Value Collection SEW8XX0250-200BX Lock Washer M2.5 SS316

Product Description

The VALUE COLLECTION SEW8XX0250-200BX is a stainless steel external tooth lock washer designed for use with M2.5 fasteners. Manufactured from Grade 316 Austenitic A4 stainless steel, this washer delivers reliable corrosion resistance in demanding environments. It features serrated external teeth that bite into mating surfaces to resist loosening under vibration or dynamic loads. With an inside diameter of 2.7mm, an outside diameter of 5.5mm, and a thickness of 0.4mm, it is sized for compact assemblies where secure fastening is critical. The uncoated finish is standard for 316 stainless applications. Electricians, HVAC technicians, plumbers, and mechanical contractors install these washers in panel assemblies, equipment enclosures, and piping fixtures.

This external tooth lock washer is suited for residential and commercial applications where vibration resistance and corrosion protection are required. It is commonly used in electrical enclosures, HVAC equipment assemblies, marine environments, and chemical-exposure installations where Grade 316 stainless steel is specified. Its small M2.5 profile makes it appropriate for compact equipment panels, instrumentation mounts, and light structural fastening. Minimum order quantity is 200 pieces per order.

Key Features

• Grade 316 Austenitic A4 stainless steel construction for superior corrosion resistance
• External serrated tooth design bites into mating surfaces to resist fastener loosening
• Inside diameter of 2.7mm fits M2.5 screws and fasteners
• Outside diameter of 5.5mm and thickness of 0.4mm for compact fastening applications
• Uncoated finish maintains dimensional accuracy and material integrity
• Meets DIN 6797 and DIN 6798 standards

Compatibility

Designed for use with M2.5 screws and fasteners in applications requiring an external tooth lock washer with a 2.7mm inside diameter and 5.5mm outside diameter.

Installation Notes

Installation is performed by electricians, HVAC technicians, plumbers, or mechanical technicians as appropriate to the assembly. Power down or de-energize any equipment before accessing fastener locations inside panels or enclosures. Place the washer between the fastener head and the mating surface with the teeth facing the mating surface to allow proper engagement. Follow applicable codes such as the NEC for electrical assemblies when specifying fastener hardware in panel builds.